Overview

overview

10

Static

static

10

2024-02-18...ry.exe

windows7-x64

10

2024-02-18...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/02/2024, 02:46

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General

  • Target
    2024-02-18_c0b494b37fb47b165f816d6a57d6f2e2_chaos_destroyer_wannacry.exe
  • Size 23KB
  • Sample240218-c9a2zade59
  • SHA256 b589b8c8419ad7609d28d2b0956720398ef25e12dce1d912b7703601cc70adc9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
chaosransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\Desktop\read_it.txt

  • chaos

Ransom Note
  • ----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Detects command variations typically used by ransomware 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 34 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 51 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-18_c0b494b37fb47b165f816d6a57d6f2e2_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-18_c0b494b37fb47b165f816d6a57d6f2e2_chaos_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Roaming\svchost.bat.exe
      "C:\Users\Admin\AppData\Roaming\svchost.bat.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:4704

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        svchost.bat.exe
        • Path C:\Users\Admin\AppData\Roaming\svchost.bat.exe
        • Size 23KB
        • SHA256 b589b8c8419ad7609d28d2b0956720398ef25e12dce1d912b7703601cc70adc9
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        read_it.txt
        • Path C:\Users\Admin\Desktop\read_it.txt
        • Size 964B
        • SHA256 7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
        • MD5 SHA1 SHA512
        Submit Download

        memory/860-15-0x00007FFACE960000-0x00007FFACF421000-memory.dmp
        Download

        memory/860-67-0x000000001AD50000-0x000000001AD60000-memory.dmp
        Download

        memory/860-69-0x00007FFACE960000-0x00007FFACF421000-memory.dmp
        Download

        memory/860-70-0x000000001AD50000-0x000000001AD60000-memory.dmp
        Download

        memory/1272-0-0x0000000000A60000-0x0000000000A6C000-memory.dmp
        Download

        memory/1272-1-0x00007FFACE960000-0x00007FFACF421000-memory.dmp
        Download

        memory/1272-14-0x00007FFACE960000-0x00007FFACF421000-memory.dmp
        Download